Measurement Of Msub W Using The Transverse Mass Ratio Of W And Z PDF Download
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| Release | : 2001 |
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Download Measurement of M[sub W] Using the Transverse Mass Ratio of W and Z. Book in PDF, ePub and Kindle
We report on the measurement of[ital W] boson mass from a direct determination of the ratio of the transverse masses of[ital W] and[ital Z] using the D[null] detector at the Fermilab Tevatron[ital p][ital[anti p]] collider operating at[radical]s= 1.8 TeV. The analysis is a preliminary result based on a partial data sample of 13[ital pb][sup -1] using[ital W][r-arrow][ital e][nu] and[ital Z][r-arrow][ital ee] decays.
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| Total Pages | : 6 |
| Release | : 1994 |
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Download Measurement of W and Z Boson Production and Extraction of the W Width and Branching Ratios at CDF Book in PDF, ePub and Kindle
We present results from W and Z boson production in proton-antiproton collisions at √s = 1.8 TeV using the CDF detector. We measure the W and Z cross sections times lepton branching ratio, [sigma](p{bar p} → W)·B(W → l[nu]{sub l}) and [sigma](p {bar p} → Z)· B(Z → k+l−) l = e, [mu]. We also measure the ratio: R{sub l} = [sigma] · B(W → l[nu]{sub l})/[sigma] · B(Z → ll). From R{sub l}, we extract the W electron and muon branching ratios, BR(W → l[nu]{sub l}, and the total W width, [Gamma]{sub W}. In addition, high transverse mass W →e[nu]{sub e}, candidates provide an alternate, direct measurement of [Gamma]{sub W}.
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| Total Pages | : 178 |
| Release | : 2010 |
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Download Ratio Method of Measuring $w$ Boson Mass Book in PDF, ePub and Kindle
This dissertation describes an alternative method of measuring the W boson mass in D0 experiment. Instead of extracting M{sub W} from the fitting of W → e[nu] fast Monte Carlo simulations to W → e[nu] data as in the standard method, we make the direct fit of transverse mass between W → e[nu] data and Z → ee data. One of the two electrons from Z boson is treated as a neutrino in the calculation of transverse mass. In ratio method, the best fitted scale factor corresponds to the ratio of W and Z boson mass (M{sub W}/M{sub Z}). Given the precisely measured Z boson mass, W mass is directly fitted from W → e[nu] and Z → ee data. This dissertation demonstrates that ratio method is a plausible method of measuring the W boson mass. With the 1 fb−1 D0 Run IIa dataset, ratio method gives M{sub W} = 80435 ± 43(stat) ± 26(sys) MeV.
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| Total Pages | : 538 |
| Release | : 1995 |
| Genre | : Aeronautics |
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Download Scientific and Technical Aerospace Reports Book in PDF, ePub and Kindle
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
| Author | : Mika Vesterinen |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 226 |
| Release | : 2012-06-30 |
| Genre | : Science |
| ISBN | : 3642307884 |
Download Z Boson Transverse Momentum Distribution, and ZZ and WZ Production Book in PDF, ePub and Kindle
This work develops novel data analysis techniques enabling aspects of the Standard Model of particle physics to be tested with unprecedented precision using data from the DZero experiment at the high energy “Tevatron” proton-antiproton collider at Fermilab, Chicago. Vesterinen's measurements of the transverse momentum of Z bosons using the novel variable φ* have exposed deficiencies in the current state-of-the-art theoretical predictions for vector boson production at hadron colliders. These techniques are now being used in the experiments at CERN’s Large Hadron Collider (LHC) and have stimulated considerable interest in the theoretical particle physics community. Furthermore, Vesterinen's measurements of the cross sections for the production of pairs of vector bosons (WZ and ZZ) are to date the most precise ever made.
| Author | : Hesheng Chen |
| Publisher | : World Scientific |
| Total Pages | : 1424 |
| Release | : 2005-05-03 |
| Genre | : Science |
| ISBN | : 9814481270 |
Download High Energy Physics Book in PDF, ePub and Kindle
The 32nd International Conference on High Energy Physics belongs to the Rochester Conference Series, and is the most important international conference in 2004 on high energy physics. The proceedings provide a comprehensive review on the recent developments in experimental and theoretical particle physics. The latest results on Top, Higgs search, CP violation, neutrino mixing, pentaquarks, heavy quark mesons and baryons, search for new particles and new phenomena, String theory, Extra dimension, Black hole and Lattice calculation are discussed extensively. The topics covered include not only those of main interest to the high energy physics community, but also recent research and future plans. Contents: Neutrino Masses and MixingsQuark Matter and Heavy Ion CollisionsParticle Astrophysics and CosmologyElectroweak PhysicsQCD Hard InteractionsQCD Soft InteractionsComputational Quantum Field TheoryCP Violation, Rare Kaon Decay and CKMR&D for Future Accelerator and DetectorHadron Spectroscopy and ExoticsHeavy Quark Mesons and BaryonsBeyond the Standard ModelString Theory Readership: Experimental and theoretical physicists and graduate students in the fields of particle physics, nuclear physics, astrophysics and cosmology.Keywords:High Energy Physics;Particle Physics;Electroweak;QCD;Heavy Quark;Neutrino;Particle Astrophysics;Hadron Spectroscopy;CP Violation;Quark Matter;Future Accelerator
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| Total Pages | : 1132 |
| Release | : 1988 |
| Genre | : Science |
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Download Government Reports Announcements & Index Book in PDF, ePub and Kindle
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| Total Pages | : 970 |
| Release | : 1992 |
| Genre | : Science |
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Download Government Reports Announcements & Index Book in PDF, ePub and Kindle
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| Total Pages | : 992 |
| Release | : 1989 |
| Genre | : Power resources |
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Download Energy Research Abstracts Book in PDF, ePub and Kindle
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| Total Pages | : 860 |
| Release | : 1978 |
| Genre | : Water |
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Download Selected Water Resources Abstracts Book in PDF, ePub and Kindle
